Refer to this chart – http://en.wikipedia.org/wiki/Windows_7_editions#Comparison_chart
The Experience features are available when you connect to Windows 7 from Ws2008 R2 as well. However you get the full set of features only when you connect to Windows 7 Enterprise or Ultimate editions. When you connect to Windows 7 Professional features such as multimedia redirection, bi-directional audio, multiple monitor etc will not be available.
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